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Featuring four titanium cogs, the new Shimano Dura-Ace 7900 cogset has further improved shifting quality by creating a more rigid aluminum carrier unit along with re-engineered tooth profile. Shimano also successfully reduced the weight of the rear wheel assembly by 10 grams.

Revised gear sprocket design - Precise & reliable shifting

8 cassette combinations - To accommodate more cyclists

Rigid aluminum carrier - Lightweight & rigid

Four titanium sprockets – Lightweight

Alloy Sprocket Carrier – Yes

Number of Sprockets – 10-Speed

Sprocket Material – Steel/Titanium

Sprocket Finish – Nickel Plated & Titanium

Chain Compatibility – Super Narrow HG for 10-Speed

Weight: 163.2g (11-23T)

NOTE: CS-7900 11-27 and 11-28 require the use of RD-7900 or RD-6700

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